Aluminum liquid refining equipment

Abstract

The invention belongs to the technical field of metal refining equipment, and discloses aluminum liquid refining equipment. The aluminum liquid refining equipment comprises a smelting furnace and a heat preservation furnace. Ventilation bricks are arranged at the bottom of the smelting furnace and the bottom of the heat preservation furnace. Refining gas enters the smelting furnace and the heat preservation furnace through the ventilation bricks so as to refine aluminum liquid in the smelting furnace and the heat preservation furnace. A smelting furnace feeding port is formed in the upper portion of the smelting furnace, and a heat preservation furnace feeding port is formed in the upper portion of the heat preservation furnace. The ventilation bricks are arranged under the smelting furnace feeding port and the heat preservation furnace feeding port. Compared with the related technologies, through the structure improvement, the aluminum liquid refining equipment achieves the followingtechnical effects that the ventilation bricks are used for conveying the refining gas, bubbles are small, more uniformity and stability are achieved, aluminum liquid rolling cannot be caused, and burnout is greatly reduced; and an automatic charging-stirring-refining-temperature measuring structure is adopted, the rough operation manner is changed, feeding can be achieved without furnace door opening, and temperature losses are avoided.

Description

【Technical field】 [0001] The invention relates to the technical field of metal refining equipment, in particular to a liquid aluminum refining equipment. 【Background technique】 [0002] During the smelting process of molten aluminum, it is necessary to refine the molten aluminum, degas and remove slag to obtain relatively pure molten aluminum. In the related art, one solution is to directly use steel pipes to blow argon and nitrogen into the smelting furnace to refine the molten aluminum. The disadvantage of this scheme is that 1) the bubbles of argon and nitrogen blown out by the steel pipe are large, and they rise up and run away without being fully mixed with the aluminum liquid, and the refining effect on the aluminum liquid is poor; 2) the argon and nitrogen blown out by the steel pipe are harmful The impact force generated by the molten aluminum causes the surface of the molten aluminum to roll, resulting in burning of the molten aluminum; 3) This scheme requires manu...

AI Technical Summary

Problems solved by technology

The disadvantage of this scheme is that 1) the bubbles of argon and nitrogen blown out by the steel pipe are large, and they rise up and run away without being fully mixed with the aluminum liquid, and the refining effect on the aluminum liquid is poor; 2) the argon and nitrogen blown out by the steel pipe are harmful The impact force generated by the molten aluminum causes the surface of the molten aluminum to roll, resulting in burning of the molten aluminum; 3) This scheme requires manual operation, high site temperature, harsh working environment, and low labor productivity

Another solution is to adopt the method of conveying while rotating, and the rotating blades will break the input refining gas into small bubbles, which increases the contact area between the refining gas and the aluminum liquid, and improves the refining effect. The disadvantages of this solution are: 1) It needs matching large-scale equipment to support the conveying structure, and the cost is high; 2) It also disturbs the molten aluminum, resulting in burning of the molten aluminum

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